Learning Docker and Kubernetes with OpenShift (Workshop)

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LEARNING DOCKER AND KUBERNETES WITH OPENSHIFT A Hands-on Lab Exclusively for DevFestMN Keith Resar Container PaaS Solution Architect February 4th, 2017 @KeithResar [email protected]

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@KeithResar 1: GETTING TO CONTAINERS THE BASICS, WHERE WE EXPLORE “WHY CONTAINERS?” AND “WHY ORCHESTRATION?” 2: ARCHITECTURE AND DISCOVERY LAB DIVE INTO KUBERNETES, OPENSHIFT 3: SOURCE TO IMAGE AND APP LAB FROM SOURCE CODE TO RUNNING APP

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@KeithResar Keith Resar: Bio Wear many hats @KeithResar [email protected] Coder Open Source Contributor and Advocate Infrastructure Architect

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GETTING TO CONTAINERS

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CHALLENGE #1 INFRASTRUCTURE LIMITS YOUR APPS

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KEY TECHNOLOGY TRENDS

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KEY TECHNOLOGY TRENDS

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CONTAINERS MAKE MICROSERVICES COST EFFECTIVE

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CHALLENGE #2 CONTAINER MANAGEMENT IS HARD

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For those of you not in the room, this is where I saved you from cliche images of container ships in disaster. You’re Welcome!

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CHALLENGE #2 CONTAINER MANAGEMENT IS HARD

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@KeithResar

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@KeithResar

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ARCHITECTURE DETAILS

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@KeithResar 10,000 foot overview

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@KeithResar OpenShift runs on your choice of infrastructure

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@KeithResar Nodes are instances of Linux where apps will run

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@KeithResar Apps and components run in containers Container Image Container Pod

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@KeithResar Pods are the orchestrated unit in OpenShift

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@KeithResar Masters are the Control Plane

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@KeithResar API and Authentication

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@KeithResar Desired and Current State

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@KeithResar Orchestration and Scheduling

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@KeithResar Placement by Policy

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@KeithResar Services connect application components

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@KeithResar Health and Scaling

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@KeithResar What about unhealthy Pods?

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@KeithResar The Master remediates Pod failures

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@KeithResar What about app data?

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@KeithResar Routing layer for external accessibility

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@KeithResar Access via Web UI, CLI, IDE, API

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SOURCE TO IMAGE

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Source 2 Image Walk Through Code Developers can leverage existing development tools and then access the OpenShift Web, CLI or IDE interfaces to create new application services and push source code via GIT. OpenShift can also accept binary deployments or be fully integrated with a customer’s existing CI/CD environment.

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Source 2 Image Walk Through Container Image Registry Build OpenShift automates the Docker image build process with Source-to-Image (S2I). S2I combines source code with a corresponding Builder image from the integrated Docker registry. Builds can also be triggered manually or automatically by setting a Git webhook. Add in Build pipelines

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Source 2 Image Walk Through Container Image Registry Deploy OpenShift automates the deployment of application containers across multiple Node hosts via the Kubernetes scheduler. Users can automatically trigger deployments on application changes and do rollbacks, configure A/B deployments & other custom deployment types.

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@KeithResar Community Callouts DOCKER MEETUP KUBERNETES MEETUP OPENSHIFT MEETUP ANSIBLE MEETUP